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Explodotetration refers to the binary function \(a\ \{\{\{4\}\}\}\ b = \{a,b,4,3\} = \underbrace{a \{\{\{3\}\}\} a \{\{\{3\}\}\} \ldots \{\{\{3\}\}\} a \{\{\{3\}\}\} a}_{\text{b a's}}\), using BEAF.[1]

In the fast-growing hierarchy, \(f_{\omega2+4}(n)\) approximately corresponds to explodotetrational growth rate.

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